AI agents call groupvictims to retrieve information from SeldomMaster without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears to retrieve or query threat intelligence data about victims associated with attack groups or threat actors. It retrieves information without modifying, deleting, or executing external operations. While the context is security-focused and potentially sensitive, the tool itself performs a Read operation.
From the tool's definition Tool named 'groupvictims' on a threat intelligence server (SeldomMaster) that integrates APIs like GreyNoise, Malpedia, and OpenCTI. The name and context suggest querying/retrieving victim data grouped by threat actor or attack group.
Documented attack patterns abuse exactly the kind of access groupvictims gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and SeldomMaster, and nothing reaches the server without passing your rules. This is the rule we recommend for groupvictims:
{
"version": "1",
"default": "deny",
"tools": {
"groupvictims": {}
}
}groupvictims is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Name: groupvictims. It is categorised as a Read tool in the SeldomMaster MCP Server, which means it retrieves data without modifying state.
Register the SeldomMaster MCP server in PolicyLayer and add a rule for groupvictims: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches SeldomMaster. Nothing to install.
groupvictims is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the groupvictims rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for groupvictims. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
groupvictims is provided by the SeldomMaster MCP server (paralax/seldommonster). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from SeldomMaster, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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52 SeldomMaster tools catalogued and risk-classified — across an index of 43,000+ MCP servers.